It is not real boiling like the boiling of a teakettle. When a teakettle boils the water turns to bubbles of vapor and goes up in the air to turn to water again when it gets cold. But in the boiling iron puddle a chemical change is taking place. The iron is not going up in vapor. The carbon and the oxygen are. This formation of gas in the molten puddle causes the whole charge to boil up like an ice-cream soda. The slag overflows. Redder than strawberry syrup and as hot as the fiery lake in Hades it flows over the rim of the hearth and out through the slag-hole.英文原著 · 《The Iron Puddler》
I glanced out of the window. Coketown was nothing more than a ragged hillside dotted with a score of black dismal huts propped up against dreary mounds of slag and clinkers. It rained in slanting torrents, too, and the rills foamed and splashed down through the black mud to the railroad-tracks.英文原著 · 《Options》
"They used to heave lumps of slag at old Hood's gaiters," said Lord Gatling.英文原著 · 《Soul of a Bishop》
My helper has pushed up a buggy there to receive it. More than an eighth and sometimes a quarter of the weight of the pig-iron flows off in slag and is carted away. Meanwhile I have got the job of my life on my hands. I must stir my boiling mess with all the strength in my body. For now is my chance to defeat nature and wring from the loosening grip of her hand the pure iron she never intended to give us.英文原著 · 《The Iron Puddler》
"This coast is magnificent," she said presently. "It's hideous," he answered. "It's as ugly as a heap of slag." "It's nature at its wildest." "That's Amanda at her wildest." "Well, isn't it?" "No! This land isn't nature. It's waste. Not wilderness. It's the other end. Those hills were covered with forests; this was a busy civilized coast just a little thousand years ago.英文原著 · 《The Research Magnificent》
I have two words for you. "Slag heap." Matthews wants the EPA to name a slag heap on the outskirts of Philadelphia as a Superfund site.美剧 · 《House of Cards》